Namely, that when you add up the runtimes of every MCU film, including Far From Home’s 129 minutes, it will equal 3,000 total minutes.
Besides being a nice round number, 3,000 is particularly significant because of Avengers: Endgame, in which Tony Stark’s daughter Morgan tells him “I love you 3000.”
The official runtime for the MCU’s next movie, Spider-Man: Far From Home was recently revealed and it seemed to confirm an epic fan theory about the Marvel Cinematic Universe.